The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 04, 1997
Filed:
Feb. 17, 1993
Joseph Purrazzella, South Hampton, NY (US);
Litton Systems, Inc., Lexington, MA (US);
Abstract
An optical tracking system and method are disclosed. The optical tracking system includes a scanning mirror which scans and receives images within a field of view scannable by the mirror. An optical system receives images from the scanning mirror and directs the images upon a charge coupled device (CCD) camera. An Inertial Measurement Unit (IMU) beam serves as a fixed reference point from which the position of the scanning mirror is determined and is directed upon the CCD camera. A dispersive element provides and directs a pattern of light consisting of a grid of diffracted orders upon the CCD camera. The movement of the scanning mirror provides a corresponding movement of the diffracted orders. The position of the center of any diffracted order can be determined in relation to the IMU beam by centroiding. The position of the scanning mirror is determined by correlating the position of the diffracted orders to the position of the scanning mirror.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile